Consulting email:

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3730-5 Electropneumatic positioner

Positioners for attachment to pneumatic control valves Valve travel from 3.6 to 300 mm · Opening angle 24 to 100° Smart, bus-powered field device complying with FOUNDATION™ fieldbus specifications based on IEC 61158-2 transmission technology.

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  • Electropneumatic positioner with FOUNDATION™ fieldbus communication

  • SAM DIGITAL  

  • Die-cast aluminum or stainless steel housing

  • Attachment to linear actuators according to IEC 60534-6, VDI/VDE 3847, or SAMSON integral attachment

  • Attachment to rotary actuators according to VDI/VDE 3845

  • Attachment to double-acting actuators with Type 3710 Reversing Amplifier

  • Integrated EXPERTplus diagnostics for control valves

  • Integrated function blocks: 1 PID Control (PID), 1 Analog Output (AO), 1 Multiple Analog Output (MAO), 1 Multiple Analog Input (MAI), 2 Discrete Outputs (DO), 2 Discrete Inputs (DI)

  • Link Master Capability

  • DO function blocks to start/execute diverse functions (e.g. start the data logger)

  • 2 DI function blocks to analyze binary input signals

  • Any desired mounting position of the positioner (but not suspended)

  • Simple one-knob, menu-driven operation

  • Automatic start-up

  • Easy-to-read display in any mounting position thanks to rotatable reading direction

  • Classified status messages according to NAMUR Recommendation NE 107

  • DTM file available for integration into FDT frame applications according to specification 1.2

  • Automatic zero monitoring

  • Calibrated travel sensor without gears susceptible to wear

  • All parameters saved in non-volatile EEPROM

  • Adjustable output pressure limitation

  • Adjustable tight-closing function

  • Binary input for DC voltage signals


USAGE

  • Challenging transit times

  • Challenging ambient conditions

  • Throttling service

  • Use of an external travel sensor

ATTACHMENT TO

  • Linear actuator, single acting

  • Linear actuator, double acting

  • Rotary actuator, double acting

  • Rotary actuator, single acting

EXPLOSION PROTECTION

  • Without certification

  • Type of protection "Intrinsic safety"

COMMUNICATION

  • FOUNDATION™ fieldbus

CONTROL LOOP

  • Fieldbus

OPTIONAL SOLENOID VALVE

  • Required

VALVE DIAGNOSTICS

  • Required


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